Low-Dropout Regulator. TPS7A05 Datasheet

TPS7A05 Regulator. Datasheet pdf. Equivalent

Part TPS7A05
Description Low-Dropout Regulator
Feature Product Folder Order Now Technical Documents Tools & Software Support & Community TPS7A05 SBVS2.
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Total Page 30 Pages
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TPS7A05
SBVS254D – FEBRUARY 2018 – REVISED AUGUST 2019
TPS7A05 1-µA Ultralow IQ, 200-mA, Low-Dropout Regulator
in a Small-Size Package
1 Features
1 Ultralow IQ: 1 µA (typ), 3 µA (max)
– IGND: 6 µA (typ) at 200 mA
• Excellent transient response
• Packages:
– 1.0-mm × 1.0-mm X2SON (4)
– 0.65-mm × 0.65-mm DSBGA (4)
– SOT-23 (5)
– SOT-23 (3)
• Input voltage range: 1.4 V to 5.5 V
• Output accuracy: 1% typical, 3% maximum
• Available in fixed-output voltage:
– 0.8 V to 3.3 V
• Very low dropout:
– 235 mV (max) at 200 mA (3.3 VOUT)
• Active output discharge
• Foldback current limit
• Stable with a 0.47-µF or larger capacitor
2 Applications
• Wearable electronics
• Ultrabooks, tablets, E-readers
• Always-on power supplies
• Set-top boxes
• Gaming controllers, remote controls, toys, drones
• Wireless handsets and smart phones
• Portable and battery-powered equipment
Typical Application Circuit
IN OUT
3 Description
The TPS7A05 is an ultra-small, low quiescent current
low-dropout regulator (LDO) that can source 200 mA
with excellent transient performance. This device has
an output range of 0.8 V to 3.3 V with a typical 1%
accuracy.
The TPS7A05, with ultralow IQ (1 µA), consumes
very-low quiescent current for extending battery life in
battery-powered applications. The device can be
operated from rechargeable Li-Ion batteries, Li-
primary battery chemistries such as Li-SOCl2, Li-
MnO2, as well as two- or three-cell alkaline batteries.
The TPS7A05 is available with an active pulldown
circuit to quickly discharge the output when disabled.
The TPS7A05 is fully specified for TJ = –40°C to
+125°C operation, and is available in standard
X2SON (DQN), SOT-23 (DBV and DBZ), and DSBGA
(YKA) packages.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
X2SON (4)
1.00 mm × 1.00 mm
TPS7A05
DSBGA (4)
SOT-23 (5)
0.65 mm × 0.65 mm
2.90 mm × 1.60 mm
SOT-23 (3)
2.90 mm x 1.60 mm
(1) For all available packages, see the package option addendum
at the end of the data sheet.
Ground Current vs Output Current
7
6
CIN
ON
OFF
TPS7A05
EN GND
COUT
5
4
3
2
1
0
0 20 40 60 80 100 120 140 160 180 200
Output Current (mA)
D043
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.



TPS7A05
TPS7A05
SBVS254D – FEBRUARY 2018 – REVISED AUGUST 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 4
6 Specifications......................................................... 6
6.1 Absolute Maximum Ratings ...................................... 6
6.2 ESD Ratings.............................................................. 6
6.3 Recommended Operating Conditions....................... 6
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics........................................... 7
6.6 Switching Characteristics .......................................... 9
6.7 Typical Characteristics ............................................ 10
7 Detailed Description ............................................ 18
7.1 Overview ................................................................. 18
7.2 Functional Block Diagram ....................................... 18
7.3 Feature Description................................................. 19
7.4 Device Functional Modes........................................ 21
8 Application and Implementation ........................ 22
8.1 Application Information............................................ 22
8.2 Typical Application .................................................. 27
9 Power Supply Recommendations...................... 27
10 Layout................................................................... 28
10.1 Layout Guidelines ................................................. 28
10.2 Layout Example .................................................... 28
11 Device and Documentation Support ................. 29
11.1 Device Support...................................................... 29
11.2 Documentation Support ........................................ 29
11.3 Receiving Notification of Documentation Updates 29
11.4 Community Resources.......................................... 29
11.5 Trademarks ........................................................... 29
11.6 Electrostatic Discharge Caution ............................ 29
11.7 Glossary ................................................................ 29
12 Mechanical, Packaging, and Orderable
Information ........................................................... 30
4 Revision History
Changes from Revision C (April 2019) to Revision D
Page
• Changed DBZ package from APL to production data ............................................................................................................ 1
• Added DBZ package to Load Regulation parameter in Electrical Characteristics table ....................................................... 7
• Added DBZ package to Dropout voltage parameter in Electrical Characteristics table ......................................................... 8
• Added condition statement to IQ vs VIN and Temperature figure ......................................................................................... 10
Changes from Revision B (August 2018) to Revision C
Page
• Added DBZ package to document as APL release................................................................................................................ 1
Changes from Revision A (May 2018) to Revision B
Page
• Changed 1-mm × 1-mm to Small-Size in document title ....................................................................................................... 1
• Changed YKA (DSBGA) package status to production data ................................................................................................ 1
• Added Accuracy for 1.825 V in Electrical Characteristics table ............................................................................................. 7
• Changed Output current limit in Electrical Characteristics table ............................................................................................ 7
• Added Output current limit for +85°C in Electrical Characteristics table ................................................................................ 7
• Changed Short-circuit current limit in Electrical Characteristics table .................................................................................... 7
• Added Dropout voltage for 1.825 V in Electrical Characteristics table................................................................................... 8
• Changed y-axis scaling and added conditions for IOUT Transient 0 mA to 100 mA figure ................................................... 10
• Changed y-axis scaling and added conditions for IOUT Transient 0 mA to 200 mA figure .................................................. 11
• Added IOUT Transient 0 mA to 50 mA figure to IOUT Transient 3 µA to 3 mA figure ............................................................. 11
• Added slew rate condition to VIN Transient figures (IOUT = 100 mA and IOUT = 200 mA) ..................................................... 12
• Added VIN Transient figures (IOUT = 150 mA and IOUT = 20 mA) .......................................................................................... 13
• Added VIN condition to PSRR vs Frequency and IOUT figure (VOUT = 1.8 V) ........................................................................ 16
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